American Journal of Potato Research最新文献

{"title":"Precision Agriculture Approach for Potato Purple Top Disease Detection: Utilizing UAV - Derived Multispectral Imagery and Machine Learning for Symptom Characterization","authors":"Diego Fernando Sánchez-Vivas,&nbsp;David Rodriguez Puertas,&nbsp;Pedro Pablo Bacca Acosta,&nbsp;Donald Heberth Riascos-Ortiz","doi":"10.1007/s12230-026-10051-z","DOIUrl":"10.1007/s12230-026-10051-z","url":null,"abstract":"<div>\u0000 \u0000 <p>In 2021, the insect <i>Bactericera cockerelli</i> (Hemiptera: Triozidae), vector of the causal agents of Potato Purple Top Disease (PPTD), was reported for the first time at Colombia, specifically in the Nariño state. Currently there is a great interest in maintaining the phytosanitary problem restricted to this zone or geographic area of the country, due to the yield and economic losses potential in other important producer regions of potato but also on other crops Solanaceae such as tree tomato, chili, pepper and cape gooseberry. This study aimed to design a methodology to detect these diseases in the region to mitigate their spread into the country. The evaluation was conducted in an experimental plot and seven commercial potato farms with presence of the cultivars Diacol Capiro and Superior, using an Unmanned Aerial Vehicle (UAV), equipped with a multispectral camera to capture images of health plants and with mild, intermediate and advanced symptoms of PPTD to estimate vegetation indices. The multispectral information, derived vegetation indices, and field symptom classes were analyzed using supervised machine-learning modeling to evaluate their capacity to discriminate disease-severity levels. Our results conclude that, for the two potato varieties evaluated, there is a decrease in reflectance between 550 and 600 nm in affected plants, suggesting an increase in light absorption in this part of the spectrum. Additionally, the Random Forest (RF) model excelled in detecting mild class using indices such as Normalized Difference Vegetation Index (NDVI) and Transformed Vegetation Index (TVI), whereas the Support Vector Machine (SVM) model showed higher sensitivity to detect disease advanced stages, where (TVI) and Green Chlorophyll Index (GCI) were identified as the most influential features in classification.</p>\u0000 </div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 4","pages":"418 - 440"},"PeriodicalIF":1.5,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12230-026-10051-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148552991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantifying Yield Gaps and Agronomic Drivers of Potato Productivity in Bhutan","authors":"Passang Wangmo,&nbsp;Yadunath Bajgai,&nbsp;Yenten Namgay,&nbsp;Tshering Tobgay,&nbsp;Kailash Pradhan,&nbsp;Lobzang Lobzang,&nbsp;Sangay Sangay","doi":"10.1007/s12230-026-10052-y","DOIUrl":"10.1007/s12230-026-10052-y","url":null,"abstract":"<div><p>Potato (<i>Solanum tuberosum</i>) is a vital crop for food security and livelihoods in Bhutan, yet its productivity has declined, with a national average yield (11.8 t ha⁻¹) severely lagging behind regional and global benchmarks. This study employed a mixed-methods approach to quantify the yield gap for two popular varieties, Desiree and Yusi Maap, and identify key influencing factors. Significant yield gaps of 41% and 52% were found, respectively. The Classification and Regression Tree (CART) model identified seed source as the primary driver; using certified seeds boosted yields to 20.7 t ha⁻¹ compared to 12.3 t ha⁻¹ with self-saved seeds. Other critical factors included soil type, access to agricultural services, and weed management, where weeding twice increased yields by 50%. The findings underscore the need for improved seed systems, targeted agronomic training, and enhanced input access to close yield gaps and promote the sustainable intensification of potato farming in Bhutan. </p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 4","pages":"441 - 453"},"PeriodicalIF":1.5,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148553186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Genotype, Environment, and Storage Time on the Ascorbic Acid Content and Retention in Potato Germplasm from the Colorado Potato Breeding and Selection Program","authors":"Olga Tikhonova,&nbsp;David G. Holm,&nbsp;Sastry S. Jayanty,&nbsp;Jacqueline M. Chaparro,&nbsp;M. Isabel Vales,&nbsp;Sahar Bagheri Toulabi,&nbsp;Jeffrey W. Koym,&nbsp;Vidyasagar Sathuvalli","doi":"10.1007/s12230-025-10038-2","DOIUrl":"10.1007/s12230-025-10038-2","url":null,"abstract":"<div>\u0000 \u0000 <p>Potato, a staple vegetable worldwide, contains notable amounts of vitamin C, delivering about 30% of the recommended daily value for adults. Its active form, ascorbic acid (AsA), acts as a potent antioxidant with numerous health benefits. Due to the high per-capita consumption of potatoes, even small AsA increases in new cultivars would have an immediate positive impact on human health. However, studies are needed to better understand natural variation of AsA content, the effect of growing location, and storage conditions. In this study, we investigated genetic, environmental, and storage influences on AsA content in potato germplasm provided by the Colorado Potato Breeding and Selection Program. In Year 1, a diverse set of 34 genotypes grown in the San Luis Valley, CO, were screened for changes in AsA levels and storage. Most genotypes lost AsA during storage at 4 °C. In Year 2, six selected genotypes (CO10064-1W/Y, CO11266-1W/Y, Ranger Russet, Rio Grande Russet, Sangre-S10, and Yukon Gold) were grown at three locations in Colorado, Oregon, and Texas to assess genotype, location, and storage time effects on AsA. Two-way interactions for genotype x storage time, genotype x location, and storage time x location were significant. Of interest is that three genotypes (CO11266-1W/Y, Ranger Russet, and Sangre-S10) primarily contributed to the storage time x location variation. This research underscores the potential for enhancing AsA content in potato tubers through traditional breeding, emphasizing the importance of both initial AsA levels and retention during storage.</p>\u0000 </div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 3","pages":"309 - 323"},"PeriodicalIF":1.8,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148236813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Method to Screen Potato Breeding Lines for Blackheart Resistance","authors":"Duroy Navarre,&nbsp;Max Feldman,&nbsp;Vidyasagar Sathuvalli,&nbsp;Brian Charlton,&nbsp;Collins Wakholi,&nbsp; Moehninsi,&nbsp;Asunta Thompson,&nbsp;Jacob Blauer","doi":"10.1007/s12230-026-10042-0","DOIUrl":"10.1007/s12230-026-10042-0","url":null,"abstract":"<div>\u0000 \u0000 <p>Potato physiological disorders, including blackheart and hollow heart, are major causes of waste, but a limitation in developing resistant breeding lines or identifying the biological basis of these disorders is a lack of convenient assays. Here we evaluated whether post-harvest heat-treatments of tubers could be used to induce blackheart, hollow heart or heat necrosis. A range of treatments were assessed. A 24-hour treatment of tubers at 41 °C was found to be effective at inducing blackheart. No heat-treatment conditions were effective at inducing hollow heart or heat necrosis. A machine vision method using a conveyor belt phenotyping platform was used to measure blackheart severity. Numerous breeding lines were evaluated for blackheart resistance and several identified that were resistant. This method will allow breeding programs to efficiently screen for blackheart resistance in breeding lines and facilitate study of the genetic and physiological basis of resistance.</p>\u0000 </div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 3","pages":"341 - 351"},"PeriodicalIF":1.8,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148237347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: 109th Annual Meeting of the Potato Association of America, Abstracts and Posters, Madison, Wisconsin, USA, July 27–31, 2025","authors":"","doi":"10.1007/s12230-026-10045-x","DOIUrl":"10.1007/s12230-026-10045-x","url":null,"abstract":"","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 2","pages":"244 - 244"},"PeriodicalIF":1.8,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147735063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Publisher Correction: Effects of Irrigation and Fertilization on Potato Production for Chips in the Pannonian Basin - A Mathematical Tools Perspective","authors":"Đorđe S. Vojnović,&nbsp;Žarko M. Ilin,&nbsp;Danijela F. Žunić,&nbsp;Aleksandra N. Tepić Horecki,&nbsp;Jelena B. Popović-Djordjević,&nbsp;Sina Siavash Moghaddam,&nbsp;Lato L. Pezo,&nbsp;Ivana V. Maksimović","doi":"10.1007/s12230-026-10048-8","DOIUrl":"10.1007/s12230-026-10048-8","url":null,"abstract":"","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 2","pages":"246 - 246"},"PeriodicalIF":1.8,"publicationDate":"2026-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147735060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Agronomic Response of Phosphorus and Calcium Rates for Processing and Table Stock Potatoes in Northeast Florida","authors":"Dario Racano,&nbsp;Lincoln Zotarelli,&nbsp;Judyson de Matos Oliveira,&nbsp;Ayush K. Sharma,&nbsp;Rishabh Gupta,&nbsp;Gustavo Franco de Castro,&nbsp;Guodong Liu","doi":"10.1007/s12230-026-10040-2","DOIUrl":"10.1007/s12230-026-10040-2","url":null,"abstract":"<div>\u0000 \u0000 <p>Phosphorus (P) and calcium (Ca) are required nutrients for potato plant growth and yield. Notably, even in soils with high P levels, tuber yield has responded to P fertilization. Additionally, the application of calcium sulfate (CaSO₄) to improve tuber quality has become a common practice, despite the absence of guidelines considering soil Ca levels as a critical threshold for such applications. The objective of this research was to assess potato plant growth, yield and tuber quality in response to P fertilizer (0, 45, 90, 135, 180, 225 kg ha^-1 of P₂O₅) and Ca fertilizer (0, 560 kg ha^-1 of CaSO₄) rates arranged in a factorial design. A three-year trial was conducted with processing cultivar Atlantic at Site 1. The trial was repeated in a commercial potato farm (Site 2) with an additional CaSO₄ rate of 1120 kg ha^-1 with table stock cultivars Fabula in 2016 and Red La Soda in 2017. In Site 1, there was a quadratic response for total yield as function of increased P fertilizer rates. However, total yield and marketable yield increased quadratically but leveled off above 90 kg ha^-1 of P₂O₅. In Site 2, there was no effect of fertilizers rates on total and marketable tuber yield, internal and external quality for any table stock cultivar. Total yield averaged 33 Mg ha^-1 (2016) and 33.9 Mg ha^-1 (2017) while marketable yield averaged 19.3 Mg ha^-1 and 23.6 Mg ha^-1 in 2016 for Fabula and 2017 for Red La Soda, respectively. Tuber specific gravity averaged 1.042 in 2016 and decreased linearly with the increasing the P fertilizer rates in 2017, ranging between 1.061 and 1.059. Potato yield responses to P fertilizer were limited and site-specific regardless of the Mehlich-3 (M3) soil testing results indicating poor reliability of the M3 extractant with bioavailable P. Calcium sulfate provided no measurable benefit to soil Ca, P availability, plant uptake, yield, or quality, indicating routine gypsum use is unwarranted in high-Ca soils and that P applications should be conservative and guided by soil tests.</p>\u0000 </div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 3","pages":"324 - 340"},"PeriodicalIF":1.8,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148237011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating Pathogenicity and the Virulence Genes txtAB, nec1, and tomA in Streptomyces Isolates from Wisconsin Potato Systems","authors":"Bryan J. Webster,&nbsp;Yu Chen,&nbsp;Amanda J. Gevens","doi":"10.1007/s12230-026-10050-0","DOIUrl":"10.1007/s12230-026-10050-0","url":null,"abstract":"<div>\u0000 \u0000 <p>Potato common scab (CS) is a disease caused by a complex of Gram-positive, filamentous bacteria belonging to the genus <i>Streptomyces</i>. Most plant pathogenic strains of <i>Streptomyces</i> cause disease by producing thaxtomin A from the <i>txtAB</i> gene, along with two additional virulence genes, <i>nec1</i> and <i>tomA</i>, which may be present. CS lesion phenotypes have been categorized as superficial-, raised-, or erumpent-lesions, pitted scabs, and fissure. The present study focused on characterizing potato-pathogenic <i>Streptomycete</i> isolates from potato growing regions during 2012–2013. Isolates from CS-infected tubers sampled from primary potato-growing regions in Northern and Central Wisconsin were analyzed for phenotypic attributes and phylogenetic features based on 16 S rRNA genetic regions. In total, 46 isolates were recovered from CS-symptomatic tubers expressing 3 categories of lesion types (superficial, raised, and pitted scab) from 6 potato cultivars from 7 Wisconsin counties. Forty-three out of 46 isolates were determined to be pathogenic based on radish seedling inoculation assays, and all of the pathogenic isolates contained the <i>txtAB</i> gene. The topological arrangement of the phylogenetic tree constructed with 16 S rRNA sequences of this isolate collection reflected homology with the most commonly reported species, <i>S. scabiei</i>, <i>S. bottropensis</i> and others. The collection revealed thirteen <i>Streptomyces</i> ribotypes isolated from scab lesions. These findings suggested a change in the profile of the soilborne pathogen populations from 2006 to 2012–2013. We determined correlations between thaxtomin A production and the presence of virulence factors <i>nec1</i> and <i>tomA</i>. Our <i>nec1</i>-positive <i>Streptomyces</i> strains produced significantly more thaxtomin A than the <i>nec1</i>-negative strains, and <i>tomA</i>-containing strains produced more thaxtomin A than <i>tomA</i>-negative strains.</p>\u0000 </div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 3","pages":"367 - 378"},"PeriodicalIF":1.8,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12230-026-10050-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148237010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in Understanding Cold Tolerance Mechanisms in Potato (Solanum Tuberosum L.): Physiological, Biochemical, Molecular, and Breeding Perspectives","authors":"Barkat Ali,&nbsp;Wajid Anwar,&nbsp;Muhammad Nauman Khan","doi":"10.1007/s12230-025-10039-1","DOIUrl":"10.1007/s12230-025-10039-1","url":null,"abstract":"<div>\u0000 \u0000 <p>Potato (<i>Solanum tuberosum</i> L.), a globally important staple crop, is susceptible to cold stress, which severely impacts its growth, yield, and quality. Improving potato cold tolerance is crucial for maintaining yield in the context of climate change. This review summarizes recent advances in the physiological, biochemical, and molecular mechanisms of potato cold tolerance and explores the roles of photosynthesis, membrane stability, osmoregulation, antioxidant defense, and cold-responsive gene networks. The integration of transcriptomics, proteomics, metabolomics, and epigenetics provides comprehensive insights into adaptation to stress. We also assessed breeding approaches, including conventional breeding, germplasm screening, marker-assisted selection, and cutting-edge genome editing tools such as CRISPR/Cas9. Finally, this review emphasizes the importance of integrating multi-omics with high-throughput phenotyping and predictive modeling to accelerate the development of cold-tolerant varieties adapted to field conditions, address existing knowledge gaps, and explore future research directions.</p>\u0000 </div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 2","pages":"109 - 133"},"PeriodicalIF":1.8,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147734826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potential Prospects of Using Biological Control Agents for Potato Pest and Disease Management: A Review","authors":"Fang Wang,&nbsp;Yuxu Zhang,&nbsp;Jinbo Zhou,&nbsp;Shijun Zhu","doi":"10.1007/s12230-026-10043-z","DOIUrl":"10.1007/s12230-026-10043-z","url":null,"abstract":"<div>\u0000 \u0000 <p>Potato cultivation faces significant challenges from various pests and diseases, including insect infestations, viral diseases, bacterial, fungal, and oomycete infections, all of which can severely impact yield and crop quality. This study presents a systematic review of the application of biological control agents (BCAs) as sustainable alternatives to chemical pesticides for managing potato pests and diseases. It outlines the types of microbial control agents, such as fungi, bacteria, and viruses, as well as natural predators and parasitoids, with a focus on their mechanisms of action, including antagonism, induction of systemic resistance, and competitive exclusion. The study also evaluates the effectiveness of integrating BCAs into integrated pest management (IPM) programs through field trials and case studies. The research underscores the importance of biological control agents in promoting sustainable potato cultivation and offers practical recommendations to enhance crop resilience and reduce reliance on chemical pesticides.</p>\u0000 </div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"103 2","pages":"134 - 147"},"PeriodicalIF":1.8,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147734835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}